This miniQuad build is meant for racing. My goal is to build a low-budget version of this:
Charpu’s quad is around 1000 € and I think I can achieve about the same performance with a fourth of that money.
I am using the same technique as I did with the big Quad V2.0. A sandwich frame, but instead of the round profile booms, I am using square profile because it is easier to make the connection between the carbon fibre bars.
I am creating the second version of the quad because I wasn’t happy with the performance of the first one. It was too heavy for the generated thrust. The 4 NTM 3536 motors were producing only 150% of the aircraft’s weight. That means the quad was hovering at 66% throttle which is not ok for my requirements, since I want to transport a 400g camera onboard.
My plan is to change the battery from a 3S (11.1V) to a 4S (14.8V) and change the propellers to generate more thrust. I also want to minimize the weight, so I am completely changing the frame structure. I am going again for a sandwich structure. I am using the 14mm booms for the main structure, which will be reinforced by the bottom and upper plates made of PCB. By doing this, I will also benefit from the copper paths and thus, have a distribution board for my ESCs.
The dxf files for the frame are my own design and can be downloaded for free from here under GNU license.
A new RC project is coming! This time, the achieved CAD skills from TU Delft helped me to simulate the entire model and therefore make the optimal design:
The dxf files for the frame are my own design and can be downloaded for free from here under GNU license. I chose to make the frame out of 2mm carbon fiber because I found cheap sheets on http://www.hobbyking.com. Unfortunately, I couldn’t find a laser that cuts carbon fiber sheets, so I cut them with the Dremel.